He lived alone in a cave for a very long time, but an earthquake cut him off from his home while he was out hunting cavebirds. Then he killed the cavebirds and ate them, and wondered what to do next. But the earthquake also uncovered some kind of crazy cavetemple, which he thought was pretty cool. He looks at it, now. Maybe this could be his new home. Very convenient, earthquake. Just gotta clean it out first. Lots of cavebirds and cavebugs in there. And cavebears and cavelions and cavesharks and cavedogs...

Oh well, not like he has any other options. Cavewind will be blowing soon, and cave dweller does not want to be outside inside when cavewind blows. Nothing does. He begins to ascend the rocks cast down in the earthquake to enter the cavetemple and claim his new home.

cue title screen and exciting chiptune music indicative of the start of a new adventure.